Study on Transient Performance Testing Method of Electronic Current Transformer in Smart Substation

Transient performance is an important parameter to measure the performance of electronic current transformer in smart substation, the transient performance of electronic current transformer with analog integrator and digital integrator is analyzed theoretical and simulated, Simulation results show that the transient performance is greatly degraded when integrator parameter or integral algorithm is improperly used. Therefore, it is necessary to test the transient performance. In view of the transient testing limitations of traditional dynamic model test system, a test method based on the technology of RTDS simulation is proposed and the real-time simulation of the transient performance is given, using the method to test the electronic current transformer transient C, the test results show that the method can provide effective reflected in the transient response of the electronic current transformer.